CN100411451C - Method for configurating radio link parameter - Google Patents
Method for configurating radio link parameter Download PDFInfo
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- CN100411451C CN100411451C CNB2006100580426A CN200610058042A CN100411451C CN 100411451 C CN100411451 C CN 100411451C CN B2006100580426 A CNB2006100580426 A CN B2006100580426A CN 200610058042 A CN200610058042 A CN 200610058042A CN 100411451 C CN100411451 C CN 100411451C
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Abstract
The present invention discloses a method for configuring radio link parameters. The method comprises the following steps: a radio network controller RNC initiates a node synchronous process to a base station NodeB on a transmission channel established in the current, and the RNC obtains and records a transmission time delay of an Iub interface between the RNC and the NodeB by the node synchronous process; the RNC configures radio link parameters according to the recorded transmission delay of the Iub interface. The transmission time delay of the Iub interface are obtained and updated to record by the method disclosed in the present invention in a service access process, and thus, radio link parameters self adapt the different transmission networks and the different transmission time delays of the Iub interface.
Description
Technical field
The present invention relates to radio resource management techniques, be meant a kind of method of configurating radio link parameter especially.
Background technology
Universal mobile telecommunications system (UMTS) is to adopt the 3-G (Generation Three mobile communication system) of Wideband Code Division Multiple Access (WCDMA) (WCDMA) air interface technologies, the UMTS system has adopted and the similar structure of second generation mobile communication system, comprises Radio Access Network (RAN) and core network (CN).UMTS Terrestrial radio access network (UTRAN) comprises one or several RNS (RNS), and a RNS is made up of a radio network controller (RNC) and one or more base station (NodeB).Wherein, the interface between RNC and the NodeB is an Iub interface, and the transmission group net of Iub interface can be Internet protocol (IP) transmission, ATM(Asynchronous Transfer Mode) transmission, microwave transmission, satellite transmits and ATM/IP mixed transport etc.
Figure 1 shows that the position of RNC in the UMTS network, RNC is used to control the Radio Resource of UTRAN, mainly finish to connect and set up and disconnection, switch, grand diversity merges, functions such as RRM control, RNC needs the radio link parameter of configuration network side and subscriber equipment (UE) side, comprise Radio Link control (RLC), the parameter of medium access control (MAC) and each layer of Frame Protocol (FP), because RLC and MAC layer terminate in RNC and handle, therefore the different transmission technologys of Iub interface can influence the selection of radio link parameter, particularly, when the propagation delay time of the different transmission technologys of Iub interface existed than big difference, the selection of radio link parameter more can not be ignored the influence of transport layer.
In the prior art, the transmission technology of using according to Iub interface is determined the empirical value of propagation delay time, then according to these empirical value configurating radio link parameters.For example, rule of thumb, the ATM propagation delay time is less than 10ms, satellite transmission delay is 300ms, when Iub interface during with the networking of ATM transmission network, according to the propagation delay time configurating radio link parameter of 10ms, when Iub interface during with the satellite transmission network networking, according to the propagation delay time configurating radio link parameter of 300ms.
Method according to the empirical value configurating radio link parameter of Iub interface propagation delay time can not adapt to complicated transmission environment.For example, be carved with very big difference when the difference for the propagation delay time of IP transmission network, therefore, can't obtain the empirical value of propagation delay time, perhaps empirical value differs greatly with the Iub interface propagation delay time of reality, thereby causes the configuration of radio link parameter to select optimized parameter according to the actual transmissions time delay.
Along with the development of transmission technology and the different demands of miscellaneous service, different business can use different transmission networks to serve, and use identical Iub interface propagation delay time configurating radio link parameter at miscellaneous service in the prior art, all kinds of business can not be selected radio link parameter according to the Iub interface propagation delay time of the reality of own service.
In sum, the actual transmissions time delay and different transmission networks that the method for the described configurating radio link parameter of prior art can not the self adaptation Iub interface.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method of configurating radio link parameter, actual transmissions time delay and different transmission network configurating radio link parameters that can the self adaptation Iub interface.
In order to achieve the above object, the invention provides a kind of method of configurating radio link parameter, it is characterized in that, this method comprises:
A) during each service access, on the dedicated channel of in the service access process, being set up, radio network controller (RNC) is initiated the node synchronizing process to base station node B, RNC obtains and writes down the Iub interface propagation delay time of current access service types between RNC and the NodeB by described node synchronizing process, and writes down the Iub interface propagation delay time of corresponding described type of service;
B) RNC disposes corresponding professional radio link parameter according to the Iub interface propagation delay time of the corresponding type of service that is write down.
Further comprise before the described step a:
After the common signal channel of NodeB affiliated subdistrict is set up, RNC initiates the node synchronizing process to NodeB, obtain Iub interface propagation delay time between RNC and the NodeB by this synchronizing process, the Iub interface propagation delay time of being obtained is recorded as the Iub interface propagation delay time of all types of service.
Further comprise before the described step a: RNC is recorded as the empirical value of Iub interface propagation delay time the Iub interface propagation delay time of all types of service.
The step of the Iub interface propagation delay time of the corresponding described type of service of the described record of step a comprises:
Whether the absolute value of the difference of the Iub interface propagation delay time of the Iub interface propagation delay time of the current access service types that the RNC judgement is obtained and the described type of service that has write down is greater than threshold value, if, the propagation delay time of the Iub interface of the described type of service that more new record obtained then; Otherwise, keep original record.
The step of the Iub interface propagation delay time of the corresponding described type of service of the described record of step a comprises:
Whether the Iub interface propagation delay time that RNC judges the current access service types obtained and the Iub interface propagation delay time of the described type of service that has write down be in same time delay span, if then keep original record; Otherwise, the propagation delay time of the Iub interface of the described type of service that new record obtained more.
Wherein, after the common signal channel of above-mentioned service access process and NodeB affiliated subdistrict was set up, the step of obtaining the described Iub interface propagation delay time between RNC and the NodeB by the node synchronizing process comprised:
A1) RNC sends the descendant node synchronization message to NodeB, and carries in this message the moment that RNC sends message;
A2) after NodeB receives the descendant node synchronization message, return the upstream node sync response, and in this response, carry the moment of RNC transmission message, the moment of NodeB reception message and the moment that NodeB sends response to RNC;
A3) after RNC receives the upstream node sync response, obtain RNC and receive moment of this response message, and from response message, obtain the moment of RNC transmission message, the moment of NodeB reception message and the moment that NodeB sends response, according to the resulting moment, calculate the propagation delay time of Iub interface.
The propagation delay time of the described Iub interface that calculates according to the resulting moment of step a3 is: RNC receives time difference between the moment of response and moment that RNC sends message and deducts NodeB and send resulting round trip transmission delay of time difference between the moment of response and moment that NodeB receives message, perhaps calculates half unidirectional transmission time delay that obtains of described round trip transmission delay.
The transmission group net of described Iub interface is: asynchronous transfer mode ATM transmission, Internet protocol IP transmission, microwave transmission, satellite transmits, or ATM/IP mixed transport.
According to method provided by the invention, in the service access process, obtain the propagation delay time of Iub interface, and write down up-to-date Iub interface propagation delay time, then according to the Iub interface propagation delay time configurating radio link parameter that is write down by the node synchronizing process.Because removed the NodeB processing delay in the Iub interface propagation delay time of utilizing the node synchronizing process to obtain, the Iub interface propagation delay time of being obtained is the actual transmissions time delay, therefore, the actual transmissions time delay of radio link parameter self adaptation Iub interface.The present invention also obtains the Iub interface propagation delay time separately at all kinds of business, when the radio link parameter of a certain business of configuration, according to corresponding professional Iub interface propagation delay time configuration parameter, therefore, when mixed transport, be different business when using different transmission networks, the actual transmissions time delay of the Iub interface that radio link parameter also can all kinds of business of self adaptation.The method of obtaining the Iub interface propagation delay time provided by the invention is applicable to the transmission network of various Iub interface, and therefore, the configuration of radio link parameter is the different transmission networks of self adaptation Iub interface also.
Description of drawings
Figure 1 shows that the position of RNC in the UMTS network in the prior art;
Figure 2 shows that RNC in the embodiment of the invention obtains the schematic diagram of Iub interface propagation delay time by the node synchronizing process;
Figure 3 shows that the flow chart that obtains the Iub interface propagation delay time in the embodiment of the invention by the node synchronizing process;
Figure 4 shows that the flow chart of configurating radio link parameter in the embodiment of the invention;
Figure 5 shows that the flow chart that upgrades the Iub interface propagation delay time in the embodiment of the invention;
Figure 6 shows that the flow chart that upgrades the Iub interface propagation delay time in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, lift specific embodiment below, the present invention is further detailed explanation.
The main thought of configurating radio link parameter of the present invention is: RNC initiates the node synchronizing process in the transmission channel of current foundation, obtain and write down the Iub interface propagation delay time by the node synchronizing process, then according to the propagation delay time configurating radio link parameter of the Iub interface that is write down.
Fig. 2 initiates the node synchronizing process for RNC and obtains the schematic diagram of Iub interface propagation delay time in the transmission channel of current foundation, its flow process comprises the steps: as shown in Figure 3
Step 301:RNC constantly issues descendant node synchronization message (DL NODESYNCHRONISATION) to NodeB at T1, carries the moment T1 that RNC sends message in this message.
Step 302:NodeB receives the descendant node synchronization message that RNC sends constantly at T2, after NodeB carries out relevant treatment, constantly return upstream node sync response (ULNODE SYNCHRONISATION) at T3, and in this response, carry moment T1, moment T2, the NodeB that NodeB receives this message that the RNC that obtains sends message send the moment T3 that responds from the descendant node synchronization message to RNC.
Step 303:RNC receives the upstream node sync response that NodeB returns constantly at T4, and obtains T1, T2, T3 from described response, and RNC utilizes T1, T2, T3 and T4 to calculate the propagation delay time of Iub transmission.RNC can calculate the round trip transmission delay (Round Trip Delay) of Iub interface according to concrete needs, perhaps also can calculate the unidirectional transmission time delay of Iub interface, the round trip transmission delay of Iub interface is: the time difference from RNC receiving node sync response to the sending node synchronization message deducts the NodeB processing delay, i.e. (T4-T1)-(T3-T2); The unidirectional transmission time delay of Iub interface is half of round trip transmission delay.
RNC initiates the node synchronizing process in order to obtain the Iub interface propagation delay time in the transmission channel of current foundation, the transmission channel of described current foundation can be common signal channel, also can be dedicated channel (DCH).After NodeB newly set up the sub-district, RNC initiated the node synchronizing process in common signal channel, and obtained the propagation delay time of Iub interface; In the service access process, RNC initiates the node synchronizing process in dedicated channel, and obtains the propagation delay time of Iub interface.
By above step, the Iub interface propagation delay time that RNC obtains is the Iub interface propagation delay time of the reality of removal NodeB processing delay.
The invention provides the radio link parameter collocation method of self adaptation Iub interface actual transmissions time delay, as shown in Figure 4, this method may further comprise the steps:
After the common signal channel of step 401:NodeB affiliated subdistrict was set up and finished, RNC initiated the node synchronizing process on common signal channel, obtained the propagation delay time of Iub interface by described node synchronizing process, and write down the propagation delay time of Iub interface.
The Iub interface propagation delay time that this step is obtained is as the initial reference of configurating radio link parameter.In the business transmission of reality, different business can adopt different transmission networks to serve, and the priority of different business is different with service quality (QoS) requirement, and the propagation delay time of different business is also different.
But, in the starting stage, owing to do not relate to concrete business, can provide unified initial value to all types of service, such as: the Iub interface propagation delay time that this step is obtained on common signal channel is recorded as the initial value of the Iub interface propagation delay time of all types of service.Perhaps, the empirical value of Iub interface propagation delay time is recorded as the initial value of Iub interface propagation delay time.Certainly, if the type of the employed transmission network of known all kinds of business then can also obtain the initial value of the Iub interface propagation delay time of all kinds of types of service respectively according to the empirical value of Iub interface propagation delay time in each transmission network.
Wherein, described all kinds of business comprise multiple business, for example speech business, session service, stream business, background service etc.The operable different transmission networks of all kinds of business include but not limited to: ATM transmission, IP transmission, microwave transmission, satellite transmits and ATM/IP mixed transport network.
Step 402: in the service access process, RNC disposes corresponding professional radio link parameter according to the propagation delay time of this professional Iub interface that is write down, and sets up dedicated channel according to radio link parameter.
Initiate the node synchronizing process on the dedicated channel that step 403:RNC is set up in this service access process, obtain the propagation delay time of this professional Iub interface by the node synchronizing process, and upgrade the propagation delay time of the original Iub interface that writes down at this business, again write down the propagation delay time of this this professional Iub interface that obtains, return step 402.
RNC carries out described step 403 in all kinds of service access processes, promptly the node synchronizing process of the dedicated channel by all kinds of business is obtained the propagation delay time of corresponding professional Iub interface, and upgrades the record of corresponding professional Iub interface propagation delay time.In all kinds of service access processes, propagation delay time configurating radio link parameter according to the Iub interface that is write down, just can guarantee that radio link parameter is all the time is foundation with up-to-date Iub interface propagation delay time, so the different transmission group nets and the different propagation delay time of Pei Zhi radio link parameter self adaptation Iub interface.
As described in step 403, in service access process each time, all upgrade the Iub interface propagation delay time, provide a kind of method of upgrading the Iub interface propagation delay time below, as shown in Figure 5, comprise following step:
Step 501: in the service access process, initiate the node synchronizing process on the dedicated channel that RNC is set up in this service access process, and obtain the propagation delay time of this professional Iub interface by the node synchronizing process.
Step 502: whether the absolute value of the difference of this professional Iub interface propagation delay time of being obtained in the determining step 501 and this professional Iub interface propagation delay time that has write down is greater than threshold value, if then execution in step 503; Otherwise, execution in step 504.
Described threshold value need set in advance appropriate value, for example: can be that benchmark is provided with appropriate value to the size of the influence of radio link parameter according to the Iub interface propagation delay time.
Step 503: upgrade this professional Iub interface propagation delay time, i.e. the Iub interface propagation delay time of being obtained in the recording step 501, process ends.
Step 504: keep original this professional Iub interface propagation delay time that writes down, process ends.
More than upgrade in the flow process of Iub interface propagation delay time, if the influence to configurating radio link parameter in t millisecond scope of Iub interface propagation delay time can be ignored, then threshold value can be set to the t/2 millisecond, whether the absolute value of judging the Iub interface propagation delay time obtained and the difference of the propagation delay time that has write down then is greater than the t/2 millisecond, if then upgrade the Iub interface propagation delay time; Otherwise, keep original record.
When the different spans according to the Iub interface propagation delay time dispose the different radio link parameter, process at the described renewal Iub interface of step 403 propagation delay time provides the method that another upgrades the Iub interface propagation delay time, as shown in Figure 6, comprise following step:
Step 601: in the service access process, initiate the node synchronizing process on the dedicated channel that RNC is set up in this service access process, and obtain the propagation delay time of this professional Iub interface by the node synchronizing process.
Step 602: whether this professional Iub interface propagation delay time of being obtained in the determining step 601 and this professional Iub interface propagation delay time that has write down be in same Iub interface propagation delay time span, if then execution in step 603; Otherwise, execution in step 604.
Described Iub interface propagation delay time span need set in advance appropriate scope, for example, can be that benchmark is provided with appropriate scope to the size of the influence of radio link parameter according to the Iub interface propagation delay time.
Step 603: keep original this professional Iub interface propagation delay time that writes down, process ends.
Step 604: upgrade this professional Iub interface propagation delay time, i.e. the Iub interface propagation delay time of being obtained in the recording step 601, process ends.
More than shown in Figure 6 be the flow process of upgrading the Iub interface propagation delay time, illustrate the result of this flow process below.Suppose in less than the t2 millisecond, to dispose a radio link parameter more than or equal to the t1 millisecond in the Iub interface propagation delay time, and more than or equal to the t2 millisecond to less than in the t3 millisecond configuration another radio link parameter, if the current Iub interface propagation delay time of obtaining is in t2 arrives the t3 scope, and in the t2 scope, then RNC upgrades this professional Iub interface propagation delay time to the Iub interface propagation delay time that has write down at t1; If the current Iub interface propagation delay time of obtaining with the Iub interface propagation delay time obtained all at t1 in the t2 scope, then keep original record.
After the above step renewal Iub interface propagation delay time, in the service access process, can utilize the Iub interface propagation delay time configurating radio link parameter that has been updated record.
In sum, propagation delay time according to the variation real-time update Iub interface of transmission network, and configurating radio link parameter is to select best parameter according to above resulting Iub interface propagation delay time, therefore, and the variation of radio link parameter self adaptation Iub interface transmission network and propagation delay time.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the method for a configurating radio link parameter is characterized in that, this method comprises:
A) during each service access, on the dedicated channel of in the service access process, being set up, radio network controller (RNC) is initiated the node synchronizing process to base station node B, RNC obtains the Iub interface propagation delay time of current access service types between RNC and the NodeB by described node synchronizing process, and writes down the Iub interface propagation delay time of corresponding described type of service;
B) RNC disposes corresponding professional radio link parameter according to the Iub interface propagation delay time of the corresponding type of service that is write down.
2. method according to claim 1 is characterized in that, further comprises before the described step a:
After the common signal channel of NodeB affiliated subdistrict is set up, RNC initiates the node synchronizing process to NodeB, obtain Iub interface propagation delay time between RNC and the NodeB by this synchronizing process, the Iub interface propagation delay time of being obtained is recorded as the Iub interface propagation delay time of all types of service.
3. method according to claim 1 is characterized in that,
Further comprise before the described step a: RNC is recorded as the empirical value of Iub interface propagation delay time the Iub interface propagation delay time of all types of service.
4. according to claim 2 or 3 described methods, it is characterized in that the step of the Iub interface propagation delay time of the corresponding described type of service of the described record of step a comprises:
Whether the absolute value of the difference of the Iub interface propagation delay time of the Iub interface propagation delay time of the current access service types that the RNC judgement is obtained and the described type of service that has write down is greater than threshold value, if, the propagation delay time of the Iub interface of the described type of service that more new record obtained then; Otherwise, keep original record.
5. according to claim 2 or 3 described methods, it is characterized in that the step of the Iub interface propagation delay time of the corresponding described type of service of the described record of step a comprises:
Whether the Iub interface propagation delay time that RNC judges the current access service types obtained and the Iub interface propagation delay time of the described type of service that has write down be in same time delay span, if then keep original record; Otherwise, the propagation delay time of the Iub interface of the described type of service that new record obtained more.
6. method according to claim 1 and 2 is characterized in that, the step of obtaining the described Iub interface propagation delay time between RNC and the NodeB by the node synchronizing process comprises:
A1) RNC sends the descendant node synchronization message to NodeB, and carries in this message the moment that RNC sends message;
A2) after NodeB receives the descendant node synchronization message, return the upstream node sync response, and in this response, carry the moment of RNC transmission message, the moment of NodeB reception message and the moment that NodeB sends response to RNC;
A3) after RNC receives the upstream node sync response, obtain RNC and receive moment of this response message, and from response message, obtain the moment of RNC transmission message, the moment of NodeB reception message and the moment that NodeB sends response, according to the resulting moment, calculate the propagation delay time of Iub interface.
7. method according to claim 6, it is characterized in that, the propagation delay time of the described Iub interface that calculates according to the resulting moment of step a3 is: RNC receives time difference between the moment of response and moment that RNC sends message and deducts NodeB and send resulting round trip transmission delay of time difference between the moment of response and moment that NodeB receives message, perhaps calculates half unidirectional transmission time delay that obtains of described round trip transmission delay.
8. method according to claim 1 is characterized in that, the transmission group net of described Iub interface is: asynchronous transfer mode ATM transmission, Internet protocol IP transmission, microwave transmission, satellite transmits, or ATM/IP mixed transport.
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| CN102014340B (en) * | 2009-11-30 | 2013-07-31 | 电信科学技术研究院 | Control method, system and equipment of MBMS time synchronization |
| CN102769491B (en) * | 2011-05-03 | 2014-11-19 | 鼎桥通信技术有限公司 | Sending method of timing adjustment control frame and base station |
| US10291431B2 (en) * | 2014-03-03 | 2019-05-14 | Pismo Labs Technology Limited | Methods and systems for transmitting and receiving data through tunnel groups |
| CN109151920B (en) * | 2017-06-16 | 2021-07-20 | 成都鼎桥通信技术有限公司 | Method for transmitting synchronization signal and base station |
| CN115996466B (en) * | 2023-03-23 | 2023-06-27 | 广州世炬网络科技有限公司 | Node function switching control method and device based on transmission link parameters |
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| WO2000025462A1 (en) * | 1998-10-28 | 2000-05-04 | Koninklijke Philips Electronics N.V. | Wireless network with clock synchronization |
| CN1479536A (en) * | 2003-04-11 | 2004-03-03 | 大唐移动通信设备有限公司 | Method and device dfor realizing synchronization of interface business between base stution controller and base stations in radio commumnication system |
| CN1722861A (en) * | 2004-07-13 | 2006-01-18 | 华为技术有限公司 | A self-adapting method for transmission link |
| CN1728871A (en) * | 2004-07-29 | 2006-02-01 | 北京三星通信技术研究有限公司 | The method that control data sends |
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|---|---|---|---|---|
| WO2000025462A1 (en) * | 1998-10-28 | 2000-05-04 | Koninklijke Philips Electronics N.V. | Wireless network with clock synchronization |
| CN1479536A (en) * | 2003-04-11 | 2004-03-03 | 大唐移动通信设备有限公司 | Method and device dfor realizing synchronization of interface business between base stution controller and base stations in radio commumnication system |
| CN1722861A (en) * | 2004-07-13 | 2006-01-18 | 华为技术有限公司 | A self-adapting method for transmission link |
| CN1728871A (en) * | 2004-07-29 | 2006-02-01 | 北京三星通信技术研究有限公司 | The method that control data sends |
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